- Prefix
01388 3- Area
- Bishop Auckland
- Number type
- Geographic landline (01/02)
- Format
01388 3XXXXX- From abroad
+44 1388 3XXXXX- Ofcom blocks in range
- 100
- Blocks in service
- 65
- Range holders
- 55
What are 01388 3XXXXX numbers?
Any UK number matching 01388 3XXXXX sits in the
01388 dialling code for Bishop Auckland.
Ofcom hands these numbers to communications providers in blocks; this range
contains 100 blocks, of which
65 are allocated and usable. Calls from these
numbers are typically homes and businesses in the Bishop Auckland area — or
organisations elsewhere that keep a local 01388 presence using
VoIP.
Who holds 01388 3… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| Sky UK Limited | 6 | 01388 309XXX |
| BT | 2 | 01388 335XXX |
| Colt Technology Services | 2 | 01388 348XXX |
| IOVOX Limited | 2 | 01388 341XXX |
| TalkTalk Communications Limited | 2 | 01388 304XXX |
| Virgin Media Limited | 2 | 01388 355XXX |
| 24 Seven Cloud Communications Ltd | 1 | 01388 364XXX |
| Adepteo Limited | 1 | 01388 354XXX |
| Barritel Limited | 1 | 01388 306XXX |
| Belgacom International Carrier Services SA | 1 | 01388 360XXX |
| Bink Networks Ltd | 1 | 01388 370XXX |
| CFL Communications Ltd | 1 | 01388 313XXX |
…and 43 more providers hold smaller allocations in this range.
Ofcom’s data shows the provider each number range was originally allocated to — not who holds an individual number today. Numbers are frequently moved (ported) between providers, and no public database reveals the person or business behind a specific number, so treat any service that claims to with suspicion.
Not every block in this range is in service: of the 100 blocks Ofcom lists, 25 are protected (reserved by Ofcom and not in use) and 10 are free/unallocated. A call appearing to come from an unallocated block is a strong sign of a spoofed number.
Is a call from a 01388 3… number safe?
A local-looking number is never proof of who is calling: fraudsters spoof 01388 caller IDs so their calls look like they come from Bishop Auckland (‘neighbour spoofing’). If an unexpected caller asks for personal, banking or one-time-code details, hang up and ring the organisation back on a number you find independently. To put a name to a caller, see who called me?; to report one, see how to report a scam number.
Check a specific 01388 3XXXXX number
Paste any full number into the checker above (or on the main phone number checker) to see its exact range holder and allocation status from this week’s Ofcom data.
Run mobiles for a business? See our business mobile network comparison or get a quote.
More 01388 number ranges
Full 01388 Bishop Auckland area-code guide › · All UK area codes ›